Place just enough water in your slow cooker to barely cover the bottom. Place ham in the slow cooker and turn on low.
In a medium sauce pan, add the brown sugar, honey and butter. Cook over medium heat until butter is melted and mixture is smooth. Remove from heat and stir in the cloves.
Spoon 1/4 of the honey mixture over the ham.
Cook ham on low for 2-3 hours until heated, brushing every 30 minutes with another 1/4 of the glaze until all the glaze is used. Serves 6-10.